Wheelchair?

Hi everyone, I have a question for those using a wheelchair. Your videos and forum are really helping me through the diagnosis. However, I couldn't find contents about the transition from walking to using a wheelchair. 1) Could you describe the phases you witnessed before eventually use a wheelchair? 2) What symptoms disappear or are soothed or avoided by the use of a wheelchair? 3) What are you still able to do? I am asking because I feel that after xmas my mobility began to degrade. I still walk, but I find it difficult/complex. Sometimes i have to think and focus on what to move in order to get my legs walking. Honestly, it is quite disappointing if I look at how much I was active and the amount of workout i do on a daily basis. It feels like being Don Quixote against windmills ...